Long description

J S X line: const foo equals open angle bracket span close angle bracket Hello World open angle bracket forward slash span close angle bracket semicolon.

JavaScript line: const foo equals React dot createElement open parenthesis open single quote span close single quote comma null comma open single quote Hello World single close quote close parenthesis semicolon. An arrow labeled This J S X will be converted into the JavaScript shown below points from the J S X line to JavaScript line. Note 1: It can happen at run-time using the Babel library (slow). Note 2: It can happen at design-time using a command-line tool (results in faster experience for the user).